Fema I4 Series, User Manual

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SERIES I4 · Model I4L
Section INDUSTRIAL . ISOLATED SIGNAL CONVERTERS
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13. Configuration menu (cont.)
Input signal low (in mV’)
Input signal high (in mV’)
Output signal low
Output signal high
Process low
Process high
Process decimal point
At the ‘ Advanced scaling ’ ( Ad.Sc ) menu, customize the actual value for
the tare, the input and output signal ranges and, if used, the process
value. When selecting a predefined configuration code, the parameters
are configured according to the code selected. The parameters are
accessible for manual configuration:
• at ‘ Tare ’ ( tArE ) view the actual value of the tare parameter, expressed
in ‘ x.xx ’ mV’ (see section 10.1). To reset the tare value manually set this
parameter to ‘ 0.00 ’. Selecting a new ‘ configuration code ’ (see section
13.1) or a new ‘ signal range ’ (see section 13.2) also restes the ‘ tare ’
value to zero.
• at the ‘ Input low signal ’ ( In.Lo ) parameter configure the low input
signal value. This value is expressed in ‘ x.xx ’ mV’ (see section 10.1).
The parameter value is not affected by changes at the tare value.
• at the ‘ Input high signal ’ ( In.hI ) parameter configure the high input
signal value. This value is expressed in ‘ x.xx ’ mV’ (see section 10.1).
The parameter value is not affected by changes at the tare value.
• at the ‘ Output low signal ’ ( ou.Lo ) parameter configure the low output
signal value. This value is expressed in ‘ x.xx ’ mA or in ‘ x.xx ’ Vdc.
• at the ‘ Output high signal ’ ( ou.hI ) parameter configure the high
output signal value. This value is expressed in ‘ x.xx ’ mA or in ‘ x.xx ’ Vdc.
These four parameters define the relation between the input and the
output signal (see Table 19) and can be modified independently, to match
the specific input-output relation for your application (see Table 20).
Additionally, a process value can be scaled using the last three
parameters of the ‘ Advanced Scaling ’ ( Ad.Sc ) menu. The actual process
value can be accessed through the ‘ display information ’ function (see
section 13.5) or the ‘ messages ’ function (see section 13.8).
• at the ‘ Process low ’ ( Pr.Lo ) parameter, configure the process value
associated to the low input signal value.
• at the ‘ Process high ’ ( Pr.hI ) parameter, configure the process value
associated to the high input signal value.
• at the ‘ Process decimal point ’ ( Pr.dP ) parameter, configure the
decimal point position for the process value.
Advanced scaling
13.4 Advanced scaling
Table 19 | EXAMPLE FOR CODE ‘011’ (0/10 m V=4/20 mA)
Output
4 mA
Input
0 mV’ 10 mV’
20 mA
Selecting the predefined code ‘011’ configures a range of 0/10 mV’=4/20 mA, and
the values configured are as indicated below:
input_low = 0.00 mV’ output_low = 4.00 mA
input_high = 10.00 mV’ output_high = 20.00 mA
Table 20 | EXAMPLE FOR CUSTOM RANGE (-8/+8 m V=1/9 V dc)
Input -8 mV’ +8 mV’
Output
1 Vdc
9 Vdc
To configure -8/+8 mV’=1/9 Vdc, select code 122 (-10/+10 mV’=0/10 Vdc) and
then configure the parameters below:
input_low = -8.00 mV’ output_low = 1.00 Vdc
input_high = 8.00 mV’ output_high = 9.00 Vdc
Tare value (in mV’)